cortexch.com - dns.ninja

`cortexch.com`

DNSSEC	🔒 Signed (DS record present)
A	217.117.142.201^{🇵🇱 TARMAN217.117.136.0/21}
		PTR	`net-142-201.tarman.pl`
NS	`ns1.nazwa.pl` ⭐
		A	77.55.125.10^{🇵🇱 NETARTGROUP77.55.125.0/24}
			PTR	`ns1.nazwa.pl`
NS	`ns2.nazwa.pl`
		A	77.55.126.10^{🇵🇱 NETARTGROUP77.55.126.0/24}
			PTR	`ns2.nazwa.pl`
NS	`ns3.nazwa.pl`
		A	77.55.127.10^{🇵🇱 NETARTGROUP77.55.127.0/24}
			PTR	`ns3.nazwa.pl`
MX	`cortexch-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::a^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-du0pr03cu00102.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::10^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-dbapr03cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am3pr04cu00500.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::8^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-as2pr05cu00100.inbound.protection.outlook.com`
		A	52.101.68.8^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-du0pr03cu00100.inbound.protection.outlook.com`
		A	52.101.68.32^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db3pr0202cu00200.inbound.protection.outlook.com`
		A	52.101.73.4^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am0pr83cu00404.inbound.protection.outlook.com`
		A	52.101.73.26^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as9pr05cu01302.inbound.protection.outlook.com`
TXT	`v=spf1 include:spf.protection.outlook.com include:spf-westeu.emailsignatures3...`
TXT	`c34636ccf0546a55b41abdb8e6332d22daafaf66c2e008dec4910938c9ae7e2b`
TXT	`MS=ms30924355`
TXT	`mojecertpl-site-verification-Ze9rNzzO7hJeJn28AA22xc51Xi80kaBD`
SOA	`ns1.nazwa.pl`biuro@nazwa.pl serial=2008133203

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1781712450

Previously MX for

cortexch.com

Same first word

cortexch.com

Similar names

cortexhc.com

DNS History

7 records (5 active, 2 former)

●NSns1.nazwa.pl2019-12-17 → 2026-06-17 · 2 obs

● 2019-12-17 20:11:32
● 2026-06-17 16:22:30

●NSns2.nazwa.pl2019-12-17 → 2026-06-17 · 2 obs

● 2019-12-17 20:11:32
● 2026-06-17 16:22:30

●NSns3.nazwa.pl2019-12-17 → 2026-06-17 · 2 obs

● 2019-12-17 20:11:32
● 2026-06-17 16:22:30

●MXcortexch-com.mail.protection.outlook.com2026-03-16 → 2026-06-17 · 3 obs

○ 2019-12-17 20:11:32
● 2026-03-16 07:47:02
● 2026-06-17 16:22:30

○MXcortexch.com2019-12-17 → 2019-12-17 · 3 obs

● 2019-12-17 20:11:32
○ 2026-03-16 07:47:02
○ 2026-06-17 16:22:30

●A217.117.142.2012026-03-16 → 2026-06-17 · 3 obs

○ 2019-12-17 20:11:32
● 2026-03-16 07:47:02
● 2026-06-17 16:22:30

○A85.128.128.1042019-12-17 → 2019-12-17 · 3 obs

● 2019-12-17 20:11:32
○ 2026-03-16 07:47:02
○ 2026-06-17 16:22:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	h.gtld-servers.net, i.gtld-servers.net, k.gtld-servers.net, c.gtld-servers.net...	-
cortexch.com	ns1.nazwa.pl, ns2.nazwa.pl, ns3.nazwa.pl	-

✅ Authoritative Response

Server:77.55.125.10

NS records: ns1.nazwa.pl, ns2.nazwa.pl, ns3.nazwa.pl

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1766ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`217.117.142.201`
NS	3	`ns1.nazwa.pl, ns2.nazwa.pl...`
MX	1	`cortexch-com.mail.protection.outlook.com`
TXT	4	`v=spf1 include:spf.protection.outlook.co, c34636ccf0546a55b41abdb8e6332d22daafaf66...`
SOA	1	`ns1.nazwa.pl biuro.nazwa.pl`

Analysis

IP Addresses

cortexch.com has exactly one IP address — 217.117.142.201.

cortexch.com shares its IP numbers with other host names like cortex.com.pl, cortexchemicals.com and www.cortexchemicals.com.

Name Servers

cortexch.com is delegated to three name servers: ns1.nazwa.pl, ns2.nazwa.pl and ns3.nazwa.pl.

cortexch.com partially shares its NS delegation with several other domains, including sokolowski-studnie.pl, poczujzmiane.pl, europa2000.pl and two others.

These name servers regularly co-occur with the name servers ns1.netart.pl, ns2.netart.pl and ns3.netart.pl.

ns1.nazwa.pl, ns2.nazwa.pl and ns3.nazwa.pl each resolve to a single IP address: ns1.nazwa.pl resolves to 77.55.125.10, ns2.nazwa.pl resolves to 77.55.126.10 and ns3.nazwa.pl resolves to 77.55.127.10.

Mail Servers

cortexch.com uses one mail server — cortexch-com.mail.protection.outlook.com.

cortexch-com.mail.protection.outlook.com has 8 IP addresses: 52.101.68.8, 52.101.68.32, 52.101.73.4 plus 5 more.